El Tejon Unified: math

The shaded band is this district's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	18,425	2393.0	− 2436	−43	× 57 / 358	−6.8
4	18,427	2419.6	− 2485	−65.4	× 50 / 358	−9.1
5	18,429	2429.2	− 2528	−98.8	× 42 / 358	−11.6
6	18,431	2468.8	− 2552	−83.2	× 45 / 358	−10.5
7	18,433	2501.3	− 2567	−65.7	× 58 / 358	−10.6
8	18,435	2516.5	− 2586	−69.5	× 48 / 358	−9.3
11	18,437	2537.1	− 2628	−90.9	× 58 / 358	−14.7
Sum, rounded to a whole point						−73

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,446	2421.0	− 2436	−15	× 60 / 411	−2.2
4	17,447	2468.0	− 2485	−17	× 60 / 411	−2.5
5	17,449	2425.9	− 2528	−102.1	× 56 / 411	−13.9
6	17,451	2451.2	− 2552	−100.8	× 52 / 411	−12.8
7	17,454	2506.8	− 2567	−60.2	× 52 / 411	−7.6
8	17,455	2559.6	− 2586	−26.4	× 59 / 411	−3.8
11	17,458	2525.1	− 2628	−102.9	× 72 / 411	−18
Sum, rounded to a whole point						−61

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,764	2427.9	− 2436	−8.1	× 45 / 388	−0.9
4	17,766	2440.9	− 2485	−44.1	× 54 / 388	−6.1
5	17,768	2464.0	− 2528	−64	× 51 / 388	−8.4
6	17,769	2436.3	− 2552	−115.7	× 53 / 388	−15.8
7	17,771	2502.1	− 2567	−64.9	× 51 / 388	−8.5
8	17,774	2541.8	− 2586	−44.2	× 60 / 388	−6.8
11	17,776	2559.9	− 2628	−68.1	× 74 / 388	−13
Sum, rounded to a whole point						−60

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,781	2413.7	− 2436	−22.3	× 43 / 347	−2.8
4	17,782	2447.6	− 2485	−37.4	× 44 / 347	−4.7
5	17,784	2467.3	− 2528	−60.7	× 50 / 347	−8.7
6	17,786	2481.4	− 2552	−70.6	× 57 / 347	−11.6
7	17,789	2504.9	− 2567	−62.1	× 54 / 347	−9.7
8	17,790	2556.5	− 2586	−29.5	× 50 / 347	−4.3
11	17,793	2549.5	− 2628	−78.5	× 49 / 347	−11.1
Sum, rounded to a whole point						−53

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,932	2414.3	− 2436	−21.7	× 53 / 347	−3.3
4	17,933	2434.3	− 2485	−50.7	× 35 / 347	−5.1
5	17,934	2451.8	− 2528	−76.2	× 45 / 347	−9.9
6	17,935	2482.8	− 2552	−69.2	× 42 / 347	−8.4
7	17,936	2517.6	− 2567	−49.4	× 52 / 347	−7.4
8	17,937	2508.4	− 2586	−77.6	× 52 / 347	−11.6
11	17,938	2532.0	− 2628	−96	× 68 / 347	−18.8
Sum, rounded to a whole point						−65

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
5	17,534	2446.5	− 2528	−81.5	× 48 / 206	−19
6	17,535	2405.2	− 2552	−146.8	× 32 / 206	−22.8
7	17,536	2422.1	− 2567	−144.9	× 37 / 206	−26
8	17,537	2480.9	− 2586	−105.1	× 49 / 206	−25
11	17,538	2527.7	− 2628	−100.3	× 40 / 206	−19.5
Sum, rounded to a whole point						−112

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,998	2376.8	− 2436	−59.2	× 50 / 324	−9.1
4	17,999	2417.6	− 2485	−67.4	× 44 / 324	−9.2
5	18,000	2453.7	− 2528	−74.3	× 45 / 324	−10.3
6	18,001	2443.6	− 2552	−108.4	× 52 / 324	−17.4
7	18,002	2448.9	− 2567	−118.1	× 35 / 324	−12.8
8	18,003	2464.8	− 2586	−121.2	× 42 / 324	−15.7
11	18,004	2489.7	− 2628	−138.3	× 56 / 324	−23.9
Sum, rounded to a whole point						−98

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,944	2391.5	− 2436	−44.5	× 41 / 341	−5.4
4	17,945	2419.6	− 2485	−65.4	× 53 / 341	−10.2
5	17,946	2450.0	− 2528	−78	× 49 / 341	−11.2
6	17,947	2452.2	− 2552	−99.8	× 48 / 341	−14
7	17,948	2476.5	− 2567	−90.5	× 52 / 341	−13.8
8	17,949	2440.9	− 2586	−145.1	× 40 / 341	−17
11	17,950	2503.6	− 2628	−124.4	× 58 / 341	−21.2
Sum, rounded to a whole point						−93

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,900	2395.9	− 2436	−40.1	× 54 / 373	−5.8
4	17,901	2451.6	− 2485	−33.4	× 48 / 373	−4.3
5	17,902	2422.5	− 2528	−105.5	× 54 / 373	−15.3
6	17,903	2478.8	− 2552	−73.2	× 53 / 373	−10.4
7	17,904	2459.7	− 2567	−107.3	× 57 / 373	−16.4
8	17,905	2489.2	− 2586	−96.8	× 57 / 373	−14.8
11	17,906	2541.7	− 2628	−86.3	× 50 / 373	−11.6
Sum, rounded to a whole point						−79

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	17,896	2377.2	− 2436	−58.8	× 39 / 359	−6.4
4	17,897	2448.8	− 2485	−36.2	× 51 / 359	−5.1
5	17,898	2465.4	− 2528	−62.6	× 51 / 359	−8.9
6	17,899	2472.5	− 2552	−79.5	× 52 / 359	−11.5
7	17,900	2484.3	− 2567	−82.7	× 53 / 359	−12.2
8	17,901	2530.0	− 2586	−56	× 60 / 359	−9.4
11	17,902	2502.7	− 2628	−125.3	× 53 / 359	−18.5
Sum, rounded to a whole point						−72

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −73, −61, −60, −53, −65, −112, −98, −93, −79, −72 → −76.6
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 12 · 2016→2017: 1 · 2017→2018: 7 · 2018→2019: 12 · 2019→2021: 47 · 2021→2022: 14 · 2022→2023: 5 · 2023→2024: 14 · 2024→2025: 7 → average 13.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 13.2 × 2.66 = 35.1. Upper limit −41.5, lower limit −111.7.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.